Plug connection for a coffee making apparatus

ABSTRACT

With respect to a plug for a power consumer, in particular a coffee-making apparatus, with means for fastening such a plug in the power consumer, the objective is to provide a method for mounting the plug which is simple, can be carried out without tools, and requires relatively little time. It should, however, also be possible to use the same method on the base, where the corresponding part to the plug must be fitted.  
     According to the principles of this invention, this objective is met by having the plug ( 1 ) positioned centrally in a recess ( 7 ) in the bottom ( 6 ) of the power consumer and resting in a flange ( 8 ) at the edge of the recess ( 7 ), thus allowing rotation around an axis perpendicular to the bottom ( 6 ), and by having the plug ( 1 ) also comprise a number of fish plates ( 2 ) on its sides, which by rotating the plug ( 1 ) can be led in under a corresponding number of hooks ( 5 ), which from a position inside the bottom ( 6 ) of the power consumer are available for fastening and locking the fish plates ( 2 ) on the side of the plug ( 1 ).

SCOPE OF THE INVENTION

[0001] This invention relates to a plug for a power consumer, in particular a coffee-making apparatus, and means for fastening such a plug in the power consumer.

STATE OF ART

[0002] Such plugs are known from so-called cordless kettles, where they are fitted on the bottom of the kettle, where they have been placed with a view to being joined with a corresponding part in a base which constitutes the galvanic connection to the supply circuit.

[0003] However, such plugs involve a series of drawbacks, insofar as they are generally laborious to mount. Moreover, they require the use of special tools and a not insignificant time expenditure.

OBJECTIVE OF THE INVENTION

[0004] Consequently, the basis for this invention is the object of providing a plug of the type mentioned in the introduction where mounting and assembly is simple and can be carried out without the use of tools, and where time expenditure is relatively low. However, it should also be possible to use the same method of assembly on the base, where the counterpart of the plug is to be fitted.

[0005] According to the principles of the present invention, this objective is met by a plug of the type mentioned in the introduction where the plug is positioned centrally in a recess in the bottom of the power consumer and rests in a flange 8 at the edge of the recess 7, thus allowing rotation around an axis perpendicular to the bottom, and where the plug also comprises a number of fish plates, which by rotating the plug can be led in under a corresponding number of hooks which from a position inside the bottom of the power consumer are available for fastening and locking the fish plates on the plug.

[0006] With a plug according to the principles of the present invention, it is possible to fit it to the bottom of the power consumer by means of a simple turning movement, without the use of tools and with highly limited time expenditure. This means that such production is suitable for robotic assembly, a fact which renders production even less costly.

[0007] In a advantageous embodiment of the plug according to the principles of the present invention, a spring-like lock is suggested between the fish plates and hooks.

[0008] Further advantageous designs of the invention appear from the dependent claims.

SHORT DESCRIPTION OF THE DRAWINGS

[0009] The drawing depicts an embodiment according to the principles of the present invention. In this drawing:

[0010]FIG. 1 depicts a cross-sectional view of the plug according to the principles of the present invention;

[0011]FIG. 2 shows a perspective of the plug according to the principles of the present invention, seen from the inside.

[0012]FIG. 1 depicts a cross-sectional view of the plug according to the principles of the present invention, where the central part comprises a known plug. Moreover, the Figure shows a fish plate 2 on each side of the central part; these fish plates 2 extend radially. At the tip of each fish plate 2 is a boring 3 or a recess, which corresponds to a downward protuberance 4 on the underside of the hook 5, which is found on the inside of the bottom 6, where the plug is fitted.

[0013] The plug 1 is placed outside a recess 7 which forms the lower flange 8 for the plug 1.

[0014] The fish plates 2 have been designed to withstand the bending stresses which will affect them during assembly or disassembly. This entails that in a cross-sectional view or tangentially, the fish plates 2 extend relatively widely in relation to the direction of the turn of the plug.

[0015] Similarly, the hooks 5 have been designed to withstand the torsion stresses which will affect them during assembly or disassembly. This means that in a cross-sectional view or tangentially, the hooks 5 extend relatively widely in relation to the direction of the turn of the plug.

[0016] At the outer end of each fish plate 2 is a boring 3 or a recess designed to hold a protuberance 4 on the corresponding hook 5. This renders it possible to establish a spring lock to firmly hold the plug 1.

[0017] The embodiment shown is an example only and is not limited to that which is depicted in the drawings, as the number of fish plates and hooks can be selected according to the exact circumstances. Changes and variations which are obvious to experts are also included in the scope of this invention. 

1. A plug for a power consumer, in particular a coffee-making apparatus, and means for fastening such a plug in the power consumer, characterised in that the plug (1) is positioned centrally in a recess (7) in the bottom (6) of the power consumer and rests in a flange (8) at the edge of the recess (7), thus allowing rotation around an axis perpendicular to the bottom (6), and that the plug (1) also comprises a number of fish plates (2) on its sides, which by rotating the plug (1) can be led in under a corresponding number of hooks (5) which from a position inside the bottom (6) of the power consumer are available for fastening and locking the fish plates (2) on the side of the plug (1).
 2. Plug according to claim 1 , characterised in that the fish plates (2) and hooks (5) have been arranged in such a way as to lock in a spring-like manner.
 3. Plug according to claim 1 and 2 , characterised in that the fish plates (2) extend relatively widely across the plug (1).
 4. Plug according to claim 1 , characterised in that the hooks (5) extend relatively widely across the plug (1). 